Three-proofing detachable battery module for mobile robot

Abstract

The invention provides a mobile robot-oriented three-proofing detachable battery module, which comprises a shell, a battery socket board, a battery cell, an inner protection board and a charging circuit board are arranged in the shell, a battery connector female seat penetrating through the shell is arranged on the battery socket board, and the inner protection board is positioned between the battery cell and the charging circuit board; an opening structure is arranged at the upper end and the side surface of the shell, a cover plate made of a metal material is arranged at the opening structure, the cover plate is of a [-shaped structure and comprises a transverse plate part and vertical plate parts located at the two ends of the transverse plate part, cooling fin structures are arranged on the vertical plate parts, and heat-conducting silicone grease is filled between the charging circuit board and the transverse plate part of the cover plate; a battery switch and a charging interface are arranged on the transverse plate part of the cover plate, the battery cell and the charging interface are both electrically connected with the charging circuit board, and the battery cell and the battery socket board are both electrically connected with the battery switch. The three-proofing detachable battery module for the mobile robot provided by the invention has the advantages of high reliability, high durability and efficient heat dissipation.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery applications, and in particular to a three-proof detachable battery module for mobile robots. Background Art

[0002] With the widespread application of mobile robots in industrial manufacturing, logistics, transportation, resource exploration, and other fields, batteries, as their core functional module, have become a focus of research and application. Technological advancements and the diversification of application scenarios have placed higher demands on the reliability, flexibility, and adaptability of mobile robots' energy supply. Especially in field and industrial environments, robots may face multiple challenges such as moisture, dust, vibration, and shock, and the protective performance of traditional batteries is no longer sufficient to meet these challenges. Furthermore, the non-replaceable nature of traditional batteries not only limits the robot's continuous operation capability and flexibility, but also shortens its service life. Extreme operating conditions, in particular, place even greater demands on the protection and ease of replacement of robot batteries.

[0003] As a battery solution with waterproof, dustproof, and shockproof functions, the triple-proof removable battery is gradually gaining widespread attention in the field of mobile robot power supply due to its stability and reliability in harsh working environments. To achieve waterproof and dustproof performance, the battery usually adopts special polymer materials and a sealed structure design, which effectively prevents moisture and dust from invading the battery and internal circuits, thereby reducing the risk of battery corrosion and short circuits. To meet the shockproof requirements, the battery casing usually adopts special shock-absorbing materials and structural designs, which can effectively absorb external vibrations and impacts, and avoid safety hazards such as leakage and short circuits. At the same time, the removable design of the battery enables users to easily replace old or depleted batteries by adding electrical interfaces and mechanical connection interfaces. This not only facilitates battery inspection and replacement, but also saves the operating and maintenance costs of the robot and improves its ability to operate continuously.

[0004] However, although triple-proof removable batteries have begun to be gradually applied in the field of mobile robots, they still face numerous challenges in actual engineering applications. To meet the requirements of waterproof and dustproof, triple-proof batteries usually adopt a sealed shell design. However, this design restricts air circulation, resulting in reduced heat dissipation efficiency of the battery, affecting its discharge efficiency and service life. In addition, the switch and charging port on the removable battery are exposed to the external environment, making them susceptible to corrosion by moisture and dust. At the same time, the frequent plugging and unplugging of the charging port between the charging device and the robot may cause nearby structures and protective components to be stretched and deformed, thereby weakening their sealing effect. In addition, unstable battery interface connection may lead to poor contact; incorrect or reverse insertion during the plugging and unplugging process may also pose a safety hazard. Summary of the Invention

[0005] The present invention aims to solve the significant defects existing in the application of traditional battery modules in mobile robots: low reliability, easy damage and short service life under complex working conditions such as humidity, dust, and vibration; the traditional built-in battery structure has a complex design, is difficult to repair and replace, and it is difficult to meet the maintainability requirements of the battery system for mobile robots. In view of these problems, the present invention proposes a three-proof detachable battery module for mobile robots, which has the advantages of high reliability, high durability and efficient heat dissipation.

[0006] The present invention is implemented as follows: A three-proof detachable battery module for mobile robots includes a housing. A battery socket board, battery cells, an inner protection board and a charging circuit board are arranged in the housing. A female battery connector passing through the housing is arranged on the battery socket board. The inner protection board is located between the battery cells and the charging circuit board. Openings are provided at the upper end and side of the housing, and a cover plate made of a metal material is arranged at the opening. The cover plate has a C-shaped structure, including a horizontal plate portion and vertical plate portions at both ends of the horizontal plate portion. Heat sink structures are arranged on the vertical plate portions. Thermal conductive silicone grease is filled between the charging circuit board and the horizontal plate portion of the cover plate. A battery switch and a charging interface are arranged on the horizontal plate portion of the cover plate. Both the battery cells and the charging interface are electrically connected to the charging circuit board, and both the battery cells and the battery socket board are electrically connected to the battery switch.

[0007] Further, the housing includes a bottom protection housing and an upper protection housing. The opening is arranged on the upper protection housing. An installation frame is arranged at the lower end of the upper protection housing. The battery cells are arranged on the installation frame. The lower end of the bottom protection housing is sealed, and the upper end is open. The upper protection housing is arranged at the upper port of the bottom protection housing, and the lower end of the installation frame is inserted into the bottom protection housing.

[0008] Further, the width of the upper protection housing in the front-rear direction is greater than the width of the bottom protection housing in the front-rear direction. A buckle structure is arranged in the middle of each of the front and rear sides of the upper protection housing. The buckle structure is used for being snap-fitted into a battery installation cavity arranged on the robot to realize the power supply connection between the battery module and the robot.

[0009] Further, the buckle structure is made of nylon material. The buckle structure includes an integrally formed C-shaped snap-fitting portion and an arc-shaped pressing portion. The arc-shaped pressing portion is located above the C-shaped snap-fitting portion. The inner side of the arc-shaped pressing portion is a cavity. A plurality of anti-slip arc-shaped protrusions are sequentially arranged on the outer wall of the arc-shaped pressing portion from top to bottom.

[0010] Furthermore, the upper end of the bottom protective cover shell is provided with a mounting groove for installing a battery socket board, and the mounting groove and the battery socket board are both rectangular ring-shaped; a through-hole structure for the battery connector socket to pass through is provided on the bottom wall of the mounting groove, and the battery socket board is installed in the mounting groove, and the battery connector socket passes through the through-hole structure, and a guide structure is provided on the bottom protective cover shell or an anti-reverse insertion structure is provided on the battery connector socket; a notch structure for accommodating a snap-on structure is provided in the middle of the front and rear sides of the mounting groove.

[0011] Furthermore, the battery socket plate is provided with a wire through-hole and a first screw positioning hole, the bottom wall of the mounting slot is provided with a second screw positioning hole corresponding one-to-one to the first screw positioning hole, the mounting frame of the upper protective cover shell is provided with a third screw positioning hole corresponding one-to-one to the first screw positioning hole, the inner wall of the vertical plate portion of the cover plate is provided with a connecting block corresponding one-to-one to the first screw positioning hole, the second screw positioning hole and the third screw positioning hole, the connecting block is provided with a threaded mounting hole, the cover plate, the upper protective cover shell, the battery socket plate and the bottom protective cover shell are connected by bolts, and the screw portion of the bolt passes through the second screw positioning hole, the first screw positioning hole and the third screw positioning hole in turn and is screwed into the threaded mounting hole of the connecting block.

[0012] Furthermore, a switch fixing interface and a charging port fixing interface are respectively provided at the left and right ends of the horizontal plate of the cover plate, and the battery switch and the charging port fixing interface are respectively installed in the switch fixing interface and the charging port fixing interface; the battery switch uses a self-locking momentary switch with a protection level not lower than IPX5, and the battery switch has a multi-color LED status indicator light, and the charging interface uses a Type-C fast charging power socket with a protection level not lower than IPX5.

[0013] Furthermore, a plurality of indicator light holes are provided on the transverse plate portion of the cover plate, and an indicator light corresponding to each indicator light hole is provided on the charging circuit board. Each indicator light passes through the corresponding indicator light hole, and a sealing structure is provided between the indicator light holes and the indicator lights.

[0014] Furthermore, first connecting through holes are provided at both ends of the charging circuit board, and first threaded holes corresponding one-to-one to each first connecting through hole of the charging circuit board are provided on the inner protective plate, and the charging circuit board is mounted on the inner protective plate by screws; a plurality of second connecting through holes are provided on the inner protective plate, and second threaded holes corresponding one-to-one to each second connecting through hole are provided on the mounting frame of the upper protective cover shell, and the inner protective plate is mounted on the mounting frame of the upper protective cover shell by screws.

[0015] Furthermore, the shell and the inner protective plate are made of nylon plastic, and the battery cell uses a 3S lithium-ion battery cell; there are multiple battery cells, and the lower plate surface of the inner protective plate is provided with isolation support ribs inserted between adjacent battery cells to prevent the battery cells from shaking and dislocating.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention adopts a modular structure. The battery module cover, upper protective housing, battery socket plate, and bottom protective housing are fixedly connected by bolts. The snap-fit ​​design of the battery mounting cavity of the robot enables rapid battery removal and replacement, significantly improving battery maintenance efficiency. It also enables operators to efficiently complete assembly operations in limited space, ensuring the continuous power supply requirements of the mobile robot equipment and reducing downtime. 2. The present invention optimizes the combination of a shell made of nylon plastic and a cover made of aluminum alloy material to achieve a lightweight design while ensuring structural strength. This not only reduces the overall weight of the battery module, but also improves space utilization, making it suitable for efficient use and convenient replacement in a small space. 3. The present invention's outer protective housing, comprised of a bottom protective cover and an upper protective cover, works in conjunction with the inner protective plate to form a multi-layered protection system, significantly enhancing the battery module's protection. This not only physically isolates and secures the battery cells and charging circuit board within the battery, but also externally seals the battery structure, effectively shielding it from moisture and dust. Furthermore, a self-locking, inching battery switch with a protection rating no lower than IPX and a Type-C fast-charging power dock charging port further ensure waterproofing.

[0017] 4. The charging circuit board and the cover plate of the present invention are filled with thermal conductive silicone grease to achieve efficient thermal coupling. Combined with the heat sink structure of the vertical plate of the cover plate, the heat dissipation surface area is significantly increased, and the heat dissipation efficiency is effectively improved. It can effectively ensure that the battery module is always maintained within a safe temperature range during the charging and discharging process, reduce the temperature rise of the battery during the charging and discharging process, prevent heat accumulation, thereby extending the battery life and ensuring safety of use. 5. The present invention features a guide structure on the bottom protective cover, or a battery connector socket with an anti-reverse insertion mechanism, effectively preventing reverse and incorrect insertion. Furthermore, the buckle structure's curved pressing portion features anti-slip curved protrusions. Optimized gaps and deformation zones provide moderate elasticity and displacement, significantly enhancing the battery module's connection stability and operational safety. The battery switch's multi-color LED status indicator provides clear operating status indication under varying lighting conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention from a top view; Figure 2 is a schematic three-dimensional structure diagram of the present invention under the elevation angle; Figure 3 is an exploded structure diagram of the present invention; Figure 4 is a schematic three-dimensional structure diagram of the inner protection plate of the present invention; Figure 5 is a schematic three-dimensional structure diagram of the cover plate of the present invention; Figure 6 is a schematic three-dimensional structure diagram of the battery socket board of the present invention; Figure 7 is a schematic three-dimensional structure diagram of the bottom protection housing of the present invention; Figure 8 is a schematic three-dimensional structure diagram of the upper protection housing of the present invention; Figure 9 is a schematic cross-sectional view of the buckle structure of the present invention.

[0019] In the figure: 1, battery cell; 2, inner protection plate; 21, first threaded hole; 22, second connection through hole; 23, isolation support rib; 3, charging circuit board; 31, indicator light; 4, cover plate; 41, heat sink structure; 42, connection block; 43, switch fixed interface; , charging port fixed interface; 45, indicator light hole; 5, battery switch; 6, charging interface; 7, battery socket board; 71, wire through hole; 72, first screw positioning hole; 8, female battery connector; 9, bottom protection housing; 91, installation groove; 92, through hole structure; 93, notch structure; 94, second screw positioning hole; 10, upper protection housing; 101, installation frame; 102, third screw positioning hole; 103, second threaded hole; 11, buckle structure; 111, U-shaped clamping part; 112, arc pressing part; 113, anti-slip arc protrusion; 12, cavity. Detailed implementation manners

[0020] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0021] The following will be further described in conjunction with the drawings and specific embodiments: As Figure 1-Figure 3 , Figure 7 , Figure 8As shown in the figure, a three-proof detachable battery module for a mobile robot includes a housing, a battery cell 1, an inner protection plate 2, a charging circuit board 3, a cover plate 4, and a battery socket board 7. The battery socket board 7, the battery cell 1, the inner protection plate 2, and the charging circuit board 3 are all arranged in the housing. The battery cell 1 uses a 3S lithium-ion battery cell, and the housing is made of nylon plastic. The housing includes a bottom protection cover 9 and an upper protection cover 10. An opening structure is arranged on the upper protection cover 10. The lower end of the upper protection cover 10 is provided with a mounting frame 101, and the battery cell 1 is mounted on the mounting frame 101. The lower end of the bottom protection cover 9 is sealed, and the upper end is open. The upper protection cover 10 is arranged at the upper port of the bottom protection cover 9, and the lower end of the mounting frame 101 is inserted into the bottom protection cover 9.

[0022] As Figure 1 , Figure 2 , Figure 7-Figure 9 shown in the figure, the width of the upper protection cover 10 in the front-back direction is greater than the width of the bottom protection cover 9 in the front-back direction. A buckle structure 11 is arranged in the middle of each of the front and back sides of the upper protection cover 10. The buckle structure 11 is used to be clamped in a battery installation cavity arranged on the robot to realize the power supply connection between the battery module and the robot. The buckle structure 11 is made of nylon material. The buckle structure 11 includes a U-shaped clamping part 111 and an arc pressing part 112 formed integrally. The arc pressing part 112 is located above the U-shaped clamping part 111. The inner side of the arc pressing part 112 is a cavity 12. The pressing direction of the arc pressing part 112 is as Figure 9 shown in the figure. The pressing force can reach 20 N, the displacement is about 3 mm, and the service life reaches 9,000 to 12,000 times, meeting the long-term use requirements under complex working conditions. A plurality of anti-slip arc-shaped protrusions 113 are arranged on the outer wall of the arc pressing part 112 in sequence from top to bottom. By arranging the anti-slip arc-shaped protrusions 113, the friction between the finger and the surface of the buckle structure 11 can be increased, and it can effectively ensure stable operation under harsh conditions such as wet, dusty, and vibrating. At the same time, through the optimized design of the gap and deformation area of the buckle structure 11, appropriate elasticity and displacement space are provided, which not only ensures the reliability of the connection but also facilitates the replacement operation.

[0023] As Figure 2 , Figure 3 , Figure 6 and Figure 7As shown, the upper end of the bottom protective cover shell 9 is provided with a mounting groove 91 for mounting the battery socket plate 7. The mounting groove 91 and the battery socket plate 7 are both rectangular ring-shaped. A notch structure 93 for accommodating the snap-on structure 11 is provided in the middle of the front and rear sides of the mounting groove 91. A battery connector female seat 8 is provided on the battery socket plate 7, which is used to connect to the battery connector male seat provided in the battery mounting cavity of the robot, thereby providing power to the robot. A through-hole structure 92 for the battery connector female seat 8 to pass through is provided on the bottom wall of the mounting groove 91. The battery socket plate 7 is installed in the mounting groove 91, and the battery connector female seat 8 passes through the through-hole structure 92, so that the battery connector female seat 8 passes through the shell and is exposed outside the shell. In order to prevent the battery connector female seat 8 from being reversed or mis-inserted when being connected to the battery connector male seat of the robot, a guide structure is provided on the bottom protective cover shell 9, such as a guide block structure is provided on the outside of one side of the bottom protective cover shell 9, or the battery connector female seat 8 itself is provided with an anti-reverse insertion structure, such as an asymmetric plug-in structure. For example, the battery connector female seat 8 adopts the GY-A50MF-A-4P-R6S5 type connector, which has high vibration resistance and stability. This type of connector itself takes anti-reverse insertion requirements into consideration in its structural design. The structural dimensions of its female seat and male seat are specially designed so that they can be successfully plugged in and connected only in the correct direction, thereby fundamentally preventing reverse insertion and mis-insertion.

[0024] like Figure 3 、 Figure 5-Figure 8 As shown, the battery socket plate 7 is provided with a wire through-hole 71 and a first screw positioning hole 72, the bottom wall of the mounting groove 91 is provided with a second screw positioning hole 94 corresponding to the first screw positioning hole 72, and the mounting frame 101 of the upper protective cover shell 10 is provided with a third screw positioning hole 102 corresponding to the first screw positioning hole 72, and the inner wall of the vertical plate portion of the cover plate 4 is provided with a connecting block 42 corresponding to the first screw positioning hole 72, the second screw positioning hole 94 and the third screw positioning hole 102, and the connecting block 42 is provided with a threaded mounting hole. The cover plate 4, the upper protective cover shell 10, the battery socket plate 7 and the bottom protective cover shell 9 are connected by bolts, and the screw portion of the bolt passes through the second screw positioning hole 94, the first screw positioning hole 72 and the third screw positioning hole 102 in sequence and is screwed into the threaded mounting hole of the connecting block 42, thereby realizing the fixed connection of the cover plate 4, the upper protective cover shell 10, the battery socket plate 7 and the bottom protective cover shell 9.

[0025] like Figure 3 and Figure 4As shown, the inner protection plate 2 is made of nylon plastic. The inner protection plate 2 is located between the battery cell 1 and the charging circuit board 3 to achieve physical isolation between the battery cell 1 and the charging circuit board 3. First connection through-holes are provided at both ends of the charging circuit board 3, and first threaded holes 21 corresponding to the first connection through-holes of the charging circuit board 3 one by one are provided on the inner protection plate 2. The charging circuit board 3 is installed on the inner protection plate 2 by screws. Multiple second connection through-holes 22 are provided on the inner protection plate 2, and second threaded holes 103 corresponding to the second connection through-holes 22 one by one are provided on the installation frame 101 of the upper protection cover 10. The inner protection plate 2 is installed on the installation frame 101 of the upper protection cover 10 by screws, thus realizing the fixed connection of the inner protection plate 2, the charging circuit board 3 and the upper protection cover 10. Coupled with the fact that the cover plate 4, the upper protection cover 10, the battery socket board 7 and the bottom protection cover 9 are also connected by bolts, the fixed connection of the inner protection plate 2, the charging circuit board 3, the upper cover plate 4, the upper protection cover 10, the battery socket board 7 and the bottom protection cover 9 is realized. There are multiple battery cells 1, and isolation support ribs 23 for preventing the battery cells from shaking and misaligning are provided on the lower plate surface of the inner protection plate 2 and inserted between adjacent battery cells 1, further improving the stability of the installation of the battery cells 1. Therefore, the present invention has high anti-vibration performance and stability and can meet the usage requirements of mobile robots.

[0026] As Figure 1 , Figure 3 , Figure 5 and Figure 8 shown, an opening structure is provided on the upper protection cover 10, and a cover plate 4 made of aluminum alloy material is provided at the opening structure, which has a relatively low density and good heat conduction effect. The cover plate 4 is in a U-shaped structure, including a horizontal plate portion and vertical plate portions located at both ends of the horizontal plate portion. A sealing structure such as a gasket is provided between the cover plate 4 and the opening structure. Thermal conductive silicone grease with a thermal conductivity of 1.2 W is filled between the charging circuit board 3 and the horizontal plate portion of the cover plate 4, so that the heat generated by the charging circuit board 3 is quickly conducted to the metal cover plate. Heat dissipation fin structures 41 are provided on the vertical plate portions, significantly increasing the heat dissipation surface area and effectively improving the heat dissipation efficiency, which can effectively ensure that the present invention is always maintained within a safe temperature range during the charging and discharging process.

[0027] As Figure 1 , Figure 3 , Figure 5 and Figure 8As shown, the left and right ends of the horizontal plate portion of the cover plate 4 are respectively provided with a switch fixing interface 43 and a charging port fixing interface 44. The battery switch 5 is installed in the switch fixing interface 43, and the charging port fixing interface 44 is installed with a charging interface 6. The battery switch 5 uses a self-locking momentary switch with a protection level not lower than IPX5, and the charging interface 6 uses a Type-C fast charging power socket with a protection level not lower than IPX5. This can effectively improve the waterproof effect of the present invention and enable the present invention to be stably used in a humid environment. The battery switch 5 also has a multi-color LED status indicator light, which can provide a clear working status indication under different lighting conditions. A plurality of indicator light holes 45 are provided on the horizontal plate portion of the cover plate 4, and an indicator light 31 corresponding to each indicator light hole 45 is provided on the charging circuit board 3. Each indicator light 31 passes through the corresponding indicator light hole 45, and a sealing structure such as a sealing ring is provided between the indicator light hole 45 and the indicator light 31.

[0028] The battery cell 1 and charging port 6 are both electrically connected to the charging circuit board 3. The battery cell 1 can be charged by connecting a charger or external power source via the charging port 6. The battery cell 1 and the battery socket board 7 are both electrically connected to a battery switch 5, which controls the circuit between the battery cell 1 and the battery connector socket 8 provided on the battery socket board 7.

[0029] The present invention also features a power management system, comprising a charging management component, a battery pack protection component, and a discharge management component. These components are used to power the robot's various functional modules (such as the perception and navigation, central control, and power system). Specifically, the power supply path receives charging voltage from the Type-C charging port, passes through the charging management circuit, a full-function protection module, 3S lithium batteries, and a load switch, and reaches the entire device's power port. To independently charge the display module, the charging management circuit generates a separate charging voltage path, which is converted by the docking station module to partially charge the display module. A fast-charging protocol component negotiates with the charger to obtain a 20V charging voltage. A status indicator component displays the current operating status of the power management module and features voltage sampling, enabling online recording of charge and discharge curves. The 3S lithium batteries power various subsystems via power switches. The perception and navigation module's Orin NX board outputs 5V power; the central control module's multiple regulated power supplies each output 5V for the TOF module, single-chip microcomputer module, and optical flow module; and the power module is directly connected to the power module via a brushless motor speed control module.

[0030] In summary, the present invention has the following beneficial effects: First, the present invention adopts a modular structure. The battery module cover plate 4, upper protective housing 10, battery socket plate 7, and bottom protective housing 9 are fixedly connected by bolts. The snap structure 11 is designed to snap into the robot's battery installation cavity, enabling rapid battery removal and replacement, significantly improving battery maintenance efficiency. It also enables operators to efficiently complete assembly operations within limited space, ensuring continuous power supply for mobile robot equipment and reducing downtime. 2. The present invention optimizes the combination of a shell made of nylon plastic and a cover plate 4 made of aluminum alloy material, achieving a lightweight design while ensuring structural strength. This not only reduces the overall weight of the battery module, but also improves space utilization, making it suitable for efficient use and convenient replacement in a small space. Third, the present invention's outer protective housing, consisting of a bottom protective cover 9 and an upper protective cover 10, works in conjunction with the inner protective plate 2 to form a multi-layered protection system, significantly enhancing the battery module's protection. This not only physically isolates and secures the battery cells 1 and charging circuit board 3 within the battery, but also seals the battery structure externally, effectively shielding it from moisture and dust. Furthermore, the use of a self-locking, inching battery switch 5 and a Type-C fast-charging power dock charging port 6, both rated at or above IPX5, further ensures waterproofing.

[0031] 4. The charging circuit board 3 and the cover plate 4 of the present invention are filled with thermal conductive silicone grease to achieve efficient thermal coupling. Combined with the heat sink structure 41 on the vertical plate portion of the cover plate 4, the heat dissipation surface area is significantly increased, effectively improving the heat dissipation efficiency. It can effectively ensure that the battery module is always maintained within a safe temperature range during the charging and discharging process, reduce the temperature rise of the battery during the charging and discharging process, prevent heat accumulation, thereby extending the battery life and ensuring safety in use. 5. The present invention features a guide structure on the bottom protective cover 9 or a battery connector socket 8 with an anti-reverse insertion mechanism, effectively preventing reverse and incorrect insertion. Furthermore, the arc-shaped pressing portion 112 of the snap-fit ​​structure 11 is provided with an anti-slip arc-shaped protrusion 113. The optimized gap and deformation area provide appropriate elasticity and displacement space, significantly improving the connection stability and operational safety of the battery module. The multi-color LED status indicator on the battery switch 5 provides clear operating status indication under varying lighting conditions.

[0032] In summary, the present invention provides a triple-proof detachable battery module for mobile robots that has the advantages of high reliability, high durability and efficient heat dissipation.

[0033] The above is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A three-proof detachable battery module for mobile robots, comprising a housing, characterized in that: A battery socket board (7), a battery cell (1), an inner protection board (2), and a charging circuit board (3) are provided in the housing. A female battery connector (8) passing through the housing is provided on the battery socket board (7). The inner protection board (2) is located between the battery cell (1) and the charging circuit board (3). Openings are provided at the upper end and the side of the housing, and a cover plate (4) made of a metallic material is provided at the opening. The cover plate (4) has a U-shaped structure, including a horizontal plate portion and vertical plate portions at both ends of the horizontal plate portion. A heat sink structure (41) is provided on the vertical plate portions. Thermal grease is filled between the charging circuit board (3) and the horizontal plate portion of the cover plate (4). A battery switch (5) and a charging interface (6) are provided on the horizontal plate portion of the cover plate (4). Both the battery cell (1) and the charging interface (6) are electrically connected to the charging circuit board (3), and both the battery cell (1) and the battery socket board (7) are electrically connected to the battery switch (5).

2. The triple-proof detachable battery module for mobile robots according to claim 1, characterized in that: The housing includes a bottom protection housing (9) and an upper protection housing (10). The opening is provided on the upper protection housing (10). An installation frame (101) is provided at the lower end of the upper protection housing (10). The battery cell (1) is provided on the installation frame (101). The lower end of the bottom protection housing (9) is sealed, and the upper end is open. The upper protection housing (10) is provided at the upper port of the bottom protection housing (9), and the lower end of the installation frame (101) is inserted into the bottom protection housing (9).

3. The triple-proof detachable battery module for mobile robots according to claim 2, characterized in that: The width of the upper protection housing (10) in the front-back direction is greater than the width of the bottom protection housing (9) in the front-back direction. A snap structure (11) is provided in the middle of each of the front and back sides of the upper protection housing (10). The snap structure (11) is used for snap-fitting into a battery installation cavity provided on a robot to achieve the power supply connection between the battery module and the robot.

4. The triple-proof detachable battery module for mobile robots according to claim 3, characterized in that: The snap structure (11) is made of nylon material. The snap structure (11) includes a U-shaped snap-in portion (111) and an arc-shaped pressing portion (112) formed integrally. The arc-shaped pressing portion (112) is located above the U-shaped snap-in portion (111). A cavity (12) is provided inside the arc-shaped pressing portion (112). A plurality of anti-slip arc-shaped protrusions (113) are provided on the outer wall of the arc-shaped pressing portion (112) in sequence from top to bottom.

5. The triple-proof detachable battery module for mobile robots according to claim 2, characterized in that: An installation groove (91) for installing the battery socket board (7) is provided at the upper end of the bottom protection housing (9). Both the installation groove (91) and the battery socket board (7) are in a rectangular ring shape. A through-hole structure (92) for the female battery connector (8) to pass through is provided on the bottom wall of the installation groove (91). The battery socket board (7) is installed in the installation groove (91), and the female battery connector (8) passes through the through-hole structure (92). A guiding structure is provided on the bottom protection housing (9) or an anti-reverse insertion structure is provided on the female battery connector (8). Notch structures (93) for accommodating the snap structure (11) are provided in the middle of the front and back sides of the installation groove (91).

6. The triple-proof detachable battery module for mobile robots according to claim 5, characterized in that: The battery socket plate (7) is provided with a wire through hole (71) and a first screw positioning hole (72); the bottom wall of the mounting groove (91) is provided with a second screw positioning hole (94) corresponding to the first screw positioning hole (72); the mounting frame (101) of the upper protective cover shell (10) is provided with a third screw positioning hole (102) corresponding to the first screw positioning hole (72); the inner wall of the vertical plate portion of the cover plate (4) is provided with a connecting block (42) corresponding to the first screw positioning hole (72), the second screw positioning hole (94) and the third screw positioning hole (102); the connecting block (42) is provided with a threaded mounting hole; the cover plate (4), the upper protective cover shell (10), the battery socket plate (7) and the bottom protective cover shell (9) are connected by bolts, and the screw portion of the bolt passes through the second screw positioning hole (94), the first screw positioning hole (72) and the third screw positioning hole (102) in sequence and is screwed into the threaded mounting hole of the connecting block (42).

7. The triple-proof detachable battery module for mobile robots according to claim 1, characterized in that: The left and right ends of the transverse plate portion of the cover plate (4) are respectively provided with a switch fixing interface (43) and a charging port fixing interface (44), and the battery switch (5) and the charging interface (6) are respectively installed in the switch fixing interface (43) and the charging port fixing interface (44); the battery switch (5) uses a self-locking momentary switch with a protection level not lower than IPX5, and the battery switch (5) has a multi-color LED status indicator light, and the charging interface (6) uses a Type-C fast charging power socket with a protection level not lower than IPX5.

8. The triple-proof detachable battery module for mobile robots according to claim 1, characterized in that: A plurality of indicator light holes (45) are provided on the transverse plate portion of the cover plate (4), and an indicator light (31) corresponding to each indicator light hole (45) is provided on the charging circuit board (3). Each indicator light (31) passes through the corresponding indicator light hole (45), and a sealing structure is provided between the indicator light hole (45) and the indicator light (31).

9. The triple-proof detachable battery module for mobile robots according to claim 2, characterized in that: The charging circuit board (3) is provided with first connection through holes at both ends, the inner protective plate (2) is provided with first threaded holes (21) corresponding one-to-one to each first connection through hole of the charging circuit board (3), and the charging circuit board (3) is mounted on the inner protective plate (2) by screws; the inner protective plate (2) is provided with a plurality of second connection through holes (22), the mounting frame (101) of the upper protective cover shell (10) is provided with second threaded holes (103) corresponding one-to-one to each second connection through hole (22), and the inner protective plate (2) is mounted on the mounting frame (101) of the upper protective cover shell (10) by screws.

10. The triple-proof detachable battery module for mobile robots according to claim 9, characterized in that: The shell and the inner protective plate (2) are made of nylon plastic, and the battery cell (1) uses a 3S lithium-ion battery cell; a plurality of battery cells (1) are provided, and the lower plate surface of the inner protective plate (2) is provided with isolation support ribs (23) inserted between adjacent battery cells (1) to prevent the battery cells from shaking and dislocating.

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